OSX

Customise the OSX Yosemite login screen, includes some download links for a couple of nice backdrops and a PSD template to help create your own (to set the layer opacity nicely and to help avoid the login dialog UI elements). Tags: OSX

How to Customize the Look and Functionality of OS X – some useful tips. It’s interesting that some of these things can’t be done natively in OSX. Also useful: Customize OS X's Login Screen with Any Logo You Want Tags: OSX

Yep, there’s a fair few of these going around, but here’s another one which looks useful if you’re planning on doing the Lion thing and want to make a USB installer: SCO0305a - Lion Installation [Free Tutorial Tags: Apple, OSX

Cinch is a piece of software which adds window positioning features similar to Windows 7 to OSX. Looks neat, and especially useful to people who switch between Windows 7 and OSX (thanks Sonic!). Tags: Apple, OSX